Back in 2011, we said:

...the 2011 Navigator L is the pick. It gets about 15 inches of extra length, most of it going to wheelbase— and thus a roomier back seat plus easier ingress/egress to the third row. But if you live in city or suburbs or anywhere not so wide-open, you'll probably want to do some measuring and put some thought into it. Those extra inches make the 19-foot-long Navigator L one of the longest vehicles sold in the U.S. The added length doesn't significantly affect performance, and the Navigator L might actually ride a bit better. Otherwise... Read More